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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Fuel System - General Information - 3.0L ECOBOOST (Except Hybrid)) >> General Procedures >> Spring Lock Couplings

Spring Lock Couplings

WARNING: This page is about a different variant/trim than selected.

For more information on Ford Color Coded Illustrations refer to OEM COLOR CODING .

Special Tool(s) / General Equipment 

GFD262333Courtesy of FORD MOTOR COMPANY
310-250Disconnect Tool, Fuel LineTKIT-2012A-FLTKIT-2012A-ROW

Disconnect 

NOTE: Fuel injection equipment is manufactured to very precise tolerances and fine clearances. It is essential that absolute cleanliness is observed when working with these components or component damage can occur. Always install plugs to any open orifices or tubes.
NOTE: When reusing liquid or vapor tube connectors, make sure to use compressed air to remove any foreign material from the connector retaining clip area before separating from the tube or damage to the tube or connector retaining clip can occur. Apply clean engine oil to the end of the tube before inserting the tube into the connector.
  1. WARNING: Before beginning any service procedure, refer to Safety Warnings in General Information. Failure to follow this instruction may result in serious personal injury.

    Refer to: Gasoline and Gasoline-Ethanol Fuel Systems Health and Safety Precautions .

  2. If servicing a liquid fuel tube spring lock coupling, release the fuel system pressure Refer to: Fuel System Pressure Release .
  3. Disconnect the battery ground cable. Refer to: BATTERY DISCONNECT AND CONNECT .
  4. Install the Fuel Line Disconnect Tool on the tube and push into the spring lock coupling to release. Use Special Service Tool: 310-250 Disconnect Tool, Fuel Line.
    GFD262334Courtesy of FORD MOTOR COMPANY
  5. Separate the spring lock coupling from the tube.
GFD262335Courtesy of FORD MOTOR COMPANY

Connect 

  1. Align and push the spring lock coupling onto the tube until fully seated.
    GFD262336Courtesy of FORD MOTOR COMPANY
  2. Pull on the coupling to make sure it is fully engaged.
  3. Connect the battery ground cable. Refer to: BATTERY DISCONNECT AND CONNECT .